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Release Dates
- KIP Freeze: January 23, 2018 (a KIP must be accepted by this date in order to be considered for this release)
- Feature Freeze: January 30, 2018 (major features merged & working on stabilization, minor features have PR, release branch cut; anything not in this state will be automatically moved to the next release in JIRA)
- Code Freeze: February 13, 2018 (first RC created now)
- Release: February 27, 2018 (Tentatively)
These dates are goals and subject to change, but we expect to stay on the Time Based Release Plan unless unexpected critical issues come up. While the target release date is fixed at ~2w after code freeze, RCs will roll out as needed until the release vote passes.
The release manager is Damian Guy.
Release Features
This is a list of key features/improvements/bugfixes that we can include with release notes (WIP):
- Significant Controller improvements (much faster and session expiration edge cases fixed)
- Data balancing across log directories (JBOD)
- More efficient replication when the number of partitions is large
- Dynamic Broker Configs
- Kafka Streams API improvements (KIP-205 / 210 / 220 / 224 / 239)
How to Contribute
Before code freeze:
- Participate in votes and discussions to land or postpone the open KIPs
- Review patches. We anticipate that this release will be bottlenecked mostly on reviews. The more reviewers, the more content we can fit in.
- Write unit/integration/system tests. We want to preserve the tradition of high-quality releases in Apache Kafka.
After code freeze:
- Write more unit/integration/system tests. We want to preserve the tradition of high-quality releases in Apache Kafka.
- Improve documentation
- Test the release candidates
- Open blocker JIRAs on critical issues found. Open non-blocker JIRAs on any other issues found.
- Fix critical bugs
- Review bug fixes
- Vote on RCs. Even though only PMC votes are binding, community votes are super important as we evaluate the readiness of the release
Open Issues
key |
summary |
type |
created |
updated |
due |
assignee |
reporter |
priority |
status |
resolution |
JQL and issue key arguments for this macro require at least one Jira application link to be configured
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Also feel free to refer to this release page for more details of the included tickets.
Planned KIP Content
Note: The planned content is not binding - final content will be based the features committed by branch-cutting date. See Kafka Improvement Proposals for the full list of KIPs.
KIP | JIRA | Component | Committer |
---|
KIP-145 - Expose Record Headers in Kafka Connect |
Unable to render Jira issues macro, execution error.
| Connect | Ewen Cheslack-Postava |
KIP-149: Enabling key access in ValueTransformer, ValueMapper, and ValueJoiner |
Unable to render Jira issues macro, execution error.
Unable to render Jira issues macro, execution error.
Unable to render Jira issues macro, execution error.
| Streams | guozhang Wang |
KIP-171 - Extend Consumer Group Reset Offset for Stream Application |
Unable to render Jira issues macro, execution error.
| Streams | guozhang Wang |
KIP-174 - Deprecate and remove internal converter configs in WorkerConfig |
Unable to render Jira issues macro, execution error.
| Connect | Ewen Cheslack-Postava |
KIP-183 - Change PreferredReplicaLeaderElectionCommand to use AdminClient |
Unable to render Jira issues macro, execution error.
| Multiple | Ismael Juma Juma |
KIP-203: Add toLowerCase support to sasl.kerberos.principal.to.local rule |
Unable to render Jira issues macro, execution error.
| Security | Jason Gustafson |
KIP-204 : Adding records deletion operation to the new Admin Client API |
Unable to render Jira issues macro, execution error.
| Admin Client | guozhang Wang |
KIP-205: Add all() and range() API to ReadOnlyWindowStore |
Unable to render Jira issues macro, execution error.
| Streams | guozhang Wang |
KIP-208: Add SSL support to Kafka Connect REST interface |
Unable to render Jira issues macro, execution error.
| Connect | Ewen Cheslack-Postava |
KIP-210 - Provide for custom error handling when Kafka Streams fails to produce |
Unable to render Jira issues macro, execution error.
| Streams | Damian Guy |
KIP-212: Enforce set of legal characters for connector names |
Unable to render Jira issues macro, execution error.
| Connect | Ewen Cheslack-Postava |
KIP-214: Add zookeeper.max.in.flight.requests config to the broker |
Unable to render Jira issues macro, execution error.
| Broker | Jiangjie Qin |
KIP-215: Add topic regex support for Connect sinks |
Unable to render Jira issues macro, execution error.
| Connect | Ewen Cheslack-Postava |
KIP-218: Make KafkaFuture.Function java 8 lambda compatible |
Unable to render Jira issues macro, execution error.
| Client | Ismael Juma Juma |
KIP-220: Add AdminClient into Kafka Streams' ClientSupplier |
Unable to render Jira issues macro, execution error.
| Streams | guozhang Wang |
KIP-223 - Add per-topic min lead and per-partition lead metrics to KafkaConsumer |
Unable to render Jira issues macro, execution error.
| Client | Jun Rao |
KIP-224: Add configuration parameter `retries` to Streams API |
Unable to render Jira issues macro, execution error.
| Streams | guozhang Wang |
KIP-225 - Use tags for consumer “records.lag” metrics |
Unable to render Jira issues macro, execution error.
| Client | |
KIP-226 - Dynamic Broker Configuration |
Unable to render Jira issues macro, execution error.
| Broker | Rajini Sivaram |
KIP-233: Simplify StreamsBuilder#addGlobalStore |
Unable to render Jira issues macro, execution error.
| Streams | guozhang Wang |
KIP-237: More Controller Health Metrics |
Unable to render Jira issues macro, execution error.
| Broker | Ismael Juma Juma |
KIP-238: Expose Kafka cluster ID in Connect REST API |
Unable to render Jira issues macro, execution error.
| Connect | Jason Gustafson |
KIP-239 Add queryableStoreName() to GlobalKTable |
Unable to render Jira issues macro, execution error.
| Streams | guozhang Wang |
KIP-242: Mask password in Kafka Connect Rest API response |
Unable to render Jira issues macro, execution error.
| Connect | Ewen Cheslack-Postava |
KIP-243: Make ProducerConfig and ConsumerConfig constructors public |
Unable to render Jira issues macro, execution error.
| Client | Matthias Sax |
KIP-245: Use Properties instead of StreamsConfig in KafkaStreams constructor |
Unable to render Jira issues macro, execution error.
| Streams | guozhang Wang |
KIP-247: Add public test utils for Kafka Streams |
Unable to render Jira issues macro, execution error.
| Streams | guozhang Wang |
Postponed to subsequent release